Originally Posted by
tmiw
I remember you saying upthread that you were okay with C&S as long as acceptance wasn't impacted. Considering that people haven't had problems lately with their C&S cards being rejected (that we know about), you should be okay for your trip.
If the PIN has changed to an online PIN then the card will fail with transactions that do offline PIN verification such as some SNCF ticket vending machines. There have also been limited reports of merchants refusing signature transactions in the UK. (This is not simply against the accept all cards policy. It is
illegal against people with disabilities preventing PIN-based transactions in the UK.) Since getting EMV cards in my wallet, the only failure has been CityRail in Sydney. CityRail's ticket vending machines seem to use offline PIN verification based on anecdotes
here and
here.